On Mon, 2016-04-18 at 14:02 +0300, ville.syrj...@linux.intel.com wrote:
> From: Ville Syrjälä <ville.syrj...@linux.intel.com>
> 
> Currently we're trying to define HSW/BDW power wells by what's not
> included. Let's do it the other way around, so that you can actually
> tell when the power well would get enabled. This will also allow us
> to
> add new power domains without accidentally adding it to the HSW/BDW
> display power domains.
> 
> The current set of domains looks rather buggy even:
> - POWER_DOMAIN_MODESET is included in the display power well
> needlessly
> - DDI-B to DDI-E were not part of the display power well when they
>   should be
> 
> So let's fix that up while at it.
> 
> Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>

Yes, much clearer without negations and indirections. We discussed this
already in person, but for reference: not including the DDI domains in
the display power well happened not to cause a problem, since they are
always requested along with their respective pipe and transcoder
domains. Nice work,
Reviewed-by: Imre Deak <imre.d...@intel.com>

> ---
>  drivers/gpu/drm/i915/intel_runtime_pm.c | 45 +++++++++++++++++++--
> ------------
>  1 file changed, 26 insertions(+), 19 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c
> b/drivers/gpu/drm/i915/intel_runtime_pm.c
> index 585bbe7cefa6..2cead6cb95a1 100644
> --- a/drivers/gpu/drm/i915/intel_runtime_pm.c
> +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
> @@ -1589,30 +1589,37 @@ void intel_display_power_put(struct
> drm_i915_private *dev_priv,
>       intel_runtime_pm_put(dev_priv);
>  }
>  
> -#define HSW_ALWAYS_ON_POWER_DOMAINS (                        \
> -     BIT(POWER_DOMAIN_PIPE_A) |                      \
> -     BIT(POWER_DOMAIN_TRANSCODER_EDP) |              \
> -     BIT(POWER_DOMAIN_PORT_DDI_A_LANES) |            \
> +#define HSW_DISPLAY_POWER_DOMAINS (                  \
> +     BIT(POWER_DOMAIN_PIPE_B) |                      \
> +     BIT(POWER_DOMAIN_PIPE_C) |                      \
> +     BIT(POWER_DOMAIN_PIPE_A_PANEL_FITTER) |         \
> +     BIT(POWER_DOMAIN_PIPE_B_PANEL_FITTER) |         \
> +     BIT(POWER_DOMAIN_PIPE_C_PANEL_FITTER) |         \
> +     BIT(POWER_DOMAIN_TRANSCODER_A) |                \
> +     BIT(POWER_DOMAIN_TRANSCODER_B) |                \
> +     BIT(POWER_DOMAIN_TRANSCODER_C) |                \
>       BIT(POWER_DOMAIN_PORT_DDI_B_LANES) |            \
>       BIT(POWER_DOMAIN_PORT_DDI_C_LANES) |            \
>       BIT(POWER_DOMAIN_PORT_DDI_D_LANES) |            \
> -     BIT(POWER_DOMAIN_PORT_CRT) |                    \
> -     BIT(POWER_DOMAIN_PLLS) |                        \
> -     BIT(POWER_DOMAIN_AUX_A) |                       \
> -     BIT(POWER_DOMAIN_AUX_B) |                       \
> -     BIT(POWER_DOMAIN_AUX_C) |                       \
> -     BIT(POWER_DOMAIN_AUX_D) |                       \
> -     BIT(POWER_DOMAIN_GMBUS) |                       \
> -     BIT(POWER_DOMAIN_INIT))
> -#define HSW_DISPLAY_POWER_DOMAINS (                          \
> -     (POWER_DOMAIN_MASK & ~HSW_ALWAYS_ON_POWER_DOMAINS) |    
> \
> +     BIT(POWER_DOMAIN_PORT_CRT) | /* DDI E */        \
> +     BIT(POWER_DOMAIN_VGA) |                         \
> +     BIT(POWER_DOMAIN_AUDIO) |                       \
>       BIT(POWER_DOMAIN_INIT))
>  
> -#define BDW_ALWAYS_ON_POWER_DOMAINS (                        \
> -     HSW_ALWAYS_ON_POWER_DOMAINS |                   \
> -     BIT(POWER_DOMAIN_PIPE_A_PANEL_FITTER))
> -#define BDW_DISPLAY_POWER_DOMAINS (                          \
> -     (POWER_DOMAIN_MASK & ~BDW_ALWAYS_ON_POWER_DOMAINS) |    
> \
> +#define BDW_DISPLAY_POWER_DOMAINS (                  \
> +     BIT(POWER_DOMAIN_PIPE_B) |                      \
> +     BIT(POWER_DOMAIN_PIPE_C) |                      \
> +     BIT(POWER_DOMAIN_PIPE_B_PANEL_FITTER) |         \
> +     BIT(POWER_DOMAIN_PIPE_C_PANEL_FITTER) |         \
> +     BIT(POWER_DOMAIN_TRANSCODER_A) |                \
> +     BIT(POWER_DOMAIN_TRANSCODER_B) |                \
> +     BIT(POWER_DOMAIN_TRANSCODER_C) |                \
> +     BIT(POWER_DOMAIN_PORT_DDI_B_LANES) |            \
> +     BIT(POWER_DOMAIN_PORT_DDI_C_LANES) |            \
> +     BIT(POWER_DOMAIN_PORT_DDI_D_LANES) |            \
> +     BIT(POWER_DOMAIN_PORT_CRT) | /* DDI E */        \
> +     BIT(POWER_DOMAIN_VGA) |                         \
> +     BIT(POWER_DOMAIN_AUDIO) |                       \
>       BIT(POWER_DOMAIN_INIT))
>  
>  #define VLV_DISPLAY_POWER_DOMAINS (          \
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